[ticket/12615] Fixed inproper clearing of .topic-actions

PHPBB3-12615
[ticket/12639] Delete entry in admin-log leads to mysql-error

PHPBB3-12639
[ticket/12639] Add a test case with an empty keywords list

PHPBB3-12639
[ticket/12639] Update tests to use a dataProvider

PHPBB3-12639
[ticket/12639] Fix tests on postgres

PHPBB3-12639
[ticket/12639] Order the results correctly in the test

PHPBB3-12639
[ticket/12639] Remove old commented tests

PHPBB3-12639
[ticket/12639] Use assertSame

PHPBB3-12639
[ticket/12541] Activate attachments tab when files are dropped into textarea

PHPBB3-12541
[ticket/12565] Empty anchors introduce white-space in IE11

PHPBB3-12565
[ticket/12521] Fix MCP merge topics row overflow

PHPBB3-12521
[ticket/12639] Send a correct IN entry when deleting marked logs

PHPBB3-12639
[ticket/12639] Don't make a copy of $marked when deleting logs in acp_logs

PHPBB3-12639
[ticket/12639] Handle $conditions['keywords'] outside of the loop

PHPBB3-12639
[ticket/12457] Default to first category if none is selected in gallery avatar

If any category exists, the key() function should always return the first
key of the $avatar_list array.

PHPBB3-12457
[ticket/12639] Add a space in the code generated by generate_sql_keyword()

PHPBB3-12639
Merge pull request #2526 from Nicofuma/ticket/12639

[ticket/12639] Delete entry in admin-log leads to mysql-error

* Nicofuma/ticket/12639:
  [ticket/12639] Add a space in the code generated by generate_sql_keyword()
  [ticket/12639] Handle $conditions['keywords'] outside of the loop
  [ticket/12639] Don't make a copy of $marked when deleting logs in acp_logs
  [ticket/12639] Send a correct IN entry when deleting marked logs
  [ticket/12639] Use assertSame
  [ticket/12639] Remove old commented tests
  [ticket/12639] Order the results correctly in the test
  [ticket/12639] Fix tests on postgres
  [ticket/12639] Update tests to use a dataProvider
  [ticket/12639] Add a test case with an empty keywords list
  [ticket/12639] Delete entry in admin-log leads to mysql-error
Merge pull request #2539 from marc1706/ticket/12457

[ticket/12457] Default to first category if none is selected in gallery avatar

* marc1706/ticket/12457:
  [ticket/12457] Default to first category if none is selected in gallery avatar
Merge pull request #2536 from PayBas/ticket/12521

[ticket/12521] Fix MCP merge topics row overflow
Merge remote-tracking branch 'PayBas/ticket/12565' into develop-ascraeus

* PayBas/ticket/12565:
  [ticket/12565] Empty anchors introduce white-space in IE11